Page 9 of 241

MITSUBISHI MULTI COMMUNICATION SYSTEM (MMCS)
CHASSIS ELECTRICAL54A-28
Navigation function
The storage of very large map data is now possible,
and the following contents have been adopted.
•Map type navigation
•NAVTEQ map database
•Map data stored in hard disc drive
•U.S. English, French, and Spanish are available
to select.
Audio and visual function
The following functions are in addition to the naviga-
tion function:
•Music server function
•DVD drive unit
•FM/AM radio
•MP3/WMA playback function
•Control by steering wheel audio remote comtrol
switch
•Integrated 4-ch power amplifier (MAX: 180 W)
•Correspond to Rockford Fosgate® premium
sound system
•Output of DVD video 5.1 channel data
•Connect with satellite radio tuner
Other function
The following functions are in addition to the naviga-
tion, audio and visual function:
•Clock display
•Connect with hands free unit
•A/C information display
•Outside temperature display
•Trip information display (Average fuel consump-
tion etc.)
•Function customize
SYSTEM BLOCK DIAGRAM
AC505476
AC608750 ZC3050180000
Audio and video
adopter Antenna
Steering wheel
audio remote control
switch
Speaker
*1: Controller Area Network Note:
*2: Universal Asynchronous Receiver Transmitter UART
communicationn
Sound Sound Voice Sound
Picture
Audio amplifierCAN box unitETACS-ECU Combination
meter
Audio visual navigation unitA/C-ECU
Hands-free
module
CAN
communication
AB
Page 14 of 241
AUDIO SYSTEM
TSB Revision
CIRCUIT DIAGRAMS90-172
AUDIO SYSTEM (CONTINUED)
RADIO AND CD PLAYER
OR CD CHANGER CLOCK
SPRING STEERING WHEEL
AUDIO REMOTE
CONTROL SWITCH
COMBINATION
METER
WIRE COLOR CODE
B : BLACK LG : LIGHT GREEN G : GREEN L : BLUE W : WHITE Y : YELLOW SB : SKY BLUE
BR : BROWN O : ORANGE GR : GRAY R : RED P : PINK V : VIOLET PU : PURPLE
Page 25 of 241
AUDIO SYSTEM
TSB Revision
CIRCUIT DIAGRAMS90-183
RADIO AND CD PLAYER OR CD CHANGER CLOCK
SPRING STEERING WHEEL
AUDIO REMOTE
CONTROL SWITCH
COMBINATION
METER
WIRE COLOR CODE
B : BLACK LG : LIGHT GREEN G : GREEN L : BLUE W : WHITE Y : YELLOW SB : SKY BLUE
BR : BROWN O : ORANGE GR : GRAY R : RED P : PINK V : VIOLET PU : PURPLE
Page 26 of 241
CLOCK
TSB Revision
CIRCUIT DIAGRAMS90-184
CLOCKM1901007701669
ETACS-
ECU
ACC
RELAY 2
37FUSIBLE
LINK36FUSIBLE
LINK
RELAY BOX
ENGINE
COMPARTMENTIGNITION
SWITCH (ACC)
RADIO AND CD PLAYER OR CD CHANGER COMBINATION METERINTERFACE
CIRCUIT
·AUDIO SYSTEM
·CONTROLLER
AREA NETWORK (CAN)
·HANDS FREE SYSTEM
·MITSUBISHI
MULTI-COMMUNICATION
SYSTEM (MMCS)
CPUINTERFACE
CIRCUIT JOINT
CONNECTOR (3)
REFER TO
POWER
DISTRIBUTION
SYSTEM
JOINT
CONNECTOR (3)
Page 29 of 241
MITSUBISHI MULTI COMMUNICATION SYSTEM (MMCS)
TSB Revision
CIRCUIT DIAGRAMS90-188
MITSUBISHI MULTI-COMMUNICATION SYSTEM (MMCS) (CONTINUED)
COMBINATION
METER
INTERFACE
CIRCUITCAN TRANSCEIVER
CIRCUIT CPU (FUSE )
9
RHEOSTATTONE
ALARM INTERFACE
CIRCUIT
AUDIO VISUAL NAVIGATION UNIT
·AIR CONDITIONING
SYSTEM
·AUTO-CRUISE
CONTROL SYSTEM
·CLOCK
·HANDS FREE
SYSTEM
·INVECS-III CVT
·TURN-SIGNAL
LIGHT AND
HAZARD WARNING
LIGHT:
·AIR CONDITIONING
SYSTEM
·INVECS-III CVT
·TURN-SIGNAL
LIGHT AND
HAZARD WARNING
LIGHT: NOTEJOINT CONNECTOR (3)
Page 75 of 241

EMISSION CONTROL
ENGINE AND EMISSION CONTROL17-13
EXHAUST GAS RECIRCULATION (EGR) VALVE
An EGR valve is installed in the EGR valve support.The EGR
valve controls EGR flow volume using the stepper motor
method and reduces exhaust gas (NOx) and fuel consumption.
The EGR valve drives the stepper motor based on the signal
from ECM. When stepper motor rotor turns in clockwise or
anti-clockwise direction, the shaft fitted with a rotor and a screw
expands and contracts and the movement of the shaft causes
the valve to go up and down. Thus, EGR path gap is controlled
minutely. The stepper motor turns 15
° per step. The stepper
motor turns forward or back only up to the angle dictated by the
number of pulse signals (number of steps) from the ECM. In
other words, increase and decrease of the EGR flow volume
depends on the number of signals (number of steps) from
ECM. ECM changes current flow to the 4 coils (A, B, C, D) in
the stepper motor in sequence according to the phase pattern
in the following chart in order to turn the stepper motor rotor.
Open valve changes phase in order of 0
→ 1 → 2 → 3 → 0. Close
valve changes phase in order of 3
→ 2 → 1 → 0 → 3.
Phase
numberStepper motor coil
Coil ACoil BCoil CCoil D
0ONOFFOFFON
1ONOFFONOFF
2OFFONONOFF
3OFFONOFFON
AK604144
Coil
Shaft
Valve Outlet
Inlet
Rotor
Magnet
AB
AK604145
From MFI relay
EGR valve
(stepper motor)
ECM Coil
ACoil
BCoil
CCoil
DFlow rate
Step
AB
Page 162 of 241

52A-1
GROUP 52A
INTERIOR
CONTENTS
GENERAL DESCRIPTION. . . . . . . . .52A-2
SPECIAL TOOL . . . . . . . . . . . . . . . . .52A-2
INSTRUMENT PANEL ASSEMBLY*.52A-2
REMOVAL AND INSTALLATION . . . . . . . . 52A-2
GLOVE BOX . . . . . . . . . . . . . . . . . . .52A-5
REMOVAL AND INSTALLATION . . . . . . . . 52A-5
INSTRUMENT CENTER PANEL . . . .52A-6
REMOVAL AND INSTLLATION . . . . . . . . . 52A-6
INSTRUMENT LOWER PANEL. . . . .52A-7
REMOVAL AND INSTALLATION . . . . . . . . 52A-7
FLOOR CONSOLE ASSEMBLY . . . .52A-8
REMOVAL AND INSTALLATION . . . . . . . . 52A-8
TRIMS. . . . . . . . . . . . . . . . . . . . . . . . .52A-10
REMOVAL AND INSTALLATION . . . . . . . . 52A-10
DOOR TRIM . . . . . . . . . . . . . . . . . . . .52A-13
REMOVAL AND INSTALLATION . . . . . . . . 52A-13
HEADLINING . . . . . . . . . . . . . . . . . . .52A-15
REMOVAL AND INSTALLATION . . . . . . . . 52A-15
INSIDE REAR VIEW MIRROR . . . . . .52A-17
FRONT SEAT ASSEMBLY* . . . . . . . .52A-17
REMOVAL AND INSTALLATION . . . . . . . . 52A-17
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 52A-19
DISASSEMBLY AND ASSEMBLY . . . . . . . 52A-21
REAR SEAT ASSEMBLY . . . . . . . . . .52A-23
REMOVAL AND INSTALLATION . . . . . . . . 52A-23
DISASSEMBLY AND ASSEMBLY . . . . . . . 52A-26
FRONT SEAT BELT* . . . . . . . . . . . . .52A-28
REMOVAL AND INSTALLATION . . . . . . . . 52A-28
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 52A-29
REAR SEAT BELT . . . . . . . . . . . . . . .52A-31
REMOVAL AND INSTALLATION . . . . . . . . 52A-31
WARNINGS REGARDING SERVICING OF SUPPLEMENTAL RESTRAINT SYSTEM (SRS) EQUIPPED VEHICLES
WARNING
•Improper service or maintenance of an y component of the SRS, or any SRS-related component, can lead to
personal injury or death to service personnel (from inadvertent firing of the air bag) or to the driver and
passenger (from renderin g the SRS inoperative).
•Service or maintenance of any SRS component or SRS-related component must be performed only at an
authorized MITSUBISHI dealer.
•MITSUBISHI dealer personnel must thoroughly review this manual, and especially its GROUP 52B - Supplemental
Restraint System (SRS) before beginning any service or maintenance of any component of the SRS or any
SRS-related component.
NOTE
The SRS includes the following components: SRS air bag control unit, SRS warning light, front impact sensors, driver’s and
passenger’s (front) air bag modules, knee air bag module, side-airbag module, curtain air bag module, side impact sensors,
seat belt pre-tensioners, clock spring, and interconnecting wiring. Other SRS-related components (that may have to be
removed/installed in connection with SRS service or maintenance) are indicated in the table of contents by an asterisk (*).
Page 163 of 241

GENERAL DESCRIPTION
TSB Revision
INTERIOR52A-2
GENERAL DESCRIPTIONM1521000100429
OPERATION
.
SEAT BELT WARNING SYSTEM
If the driver turns the ignition switch to the "ON" posi-
tion without fastening the seat belt, the seat belt
warning light illuminates.
SPECIAL TOOLM1521000600576
INSTRUMENT PANEL ASSEMBLY
REMOVAL AND INSTALLATIONM1521001701591
WARNING
For removal and installation of the passenger's side air bag module, always observe the ser-
vice procedures described in GROUP 52B, Air Bag Module and Clock Spring P.52B-367.
The following bolts and screws are used for installing the in strument panel. Bolts and screws are indicated as
marks shown in the illustration in the sections of "R emoval and Installation" and "Disassembly and Assem
-
bly."
D: Thread diameter, L: Effective thread length
ToolTool number and nameSupersessionApplication
MB990784
Ornament remover
General service toolRemoval of switch, trim,
etc.
MB990784
NameSymbolSize (D × L) mmColorShape
Tapping screwa5 × 12−
b5 × 16−
c5 × 12−
Bolt with washerd5 × 20−
e6 × 16−
AC104450
AC104436
AC104417
AC104429